352861 has 4 divisors (see below), whose sum is σ = 354492. Its totient is φ = 351232.

The previous prime is 352853. The next prime is 352867. The reversal of 352861 is 168253.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 348100 + 4761 = 590^2 + 69^2 .

It is a cyclic number.

It is not a de Polignac number, because 352861 - 2³ = 352853 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430 + ... + 943.

It is an arithmetic number, because the mean of its divisors is an integer number (88623).

2³⁵²⁸⁶¹ is an apocalyptic number.

It is an amenable number.

352861 is a deficient number, since it is larger than the sum of its proper divisors (1631).

352861 is a wasteful number, since it uses less digits than its factorization.

352861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630.

The product of its digits is 1440, while the sum is 25.

The square root of 352861 is about 594.0210433983. The cubic root of 352861 is about 70.6644885805.

Subtracting from 352861 its sum of digits (25), we obtain a square (352836 = 594²).

The spelling of 352861 in words is "three hundred fifty-two thousand, eight hundred sixty-one".